TMQ AP9, Руководство по эксплуатации и установке

Страница: 12 / 51

TMQ AP9 Autopilot (V6.0 - 965) Page 12 of 51 31/1/2017
When set fully anticlockwise, the boat will turn at a rate of 1º/second (i.e. 180 degrees in 3
minutes). When set fully clockwise, the boat will turn at a rate of 40º/ second (i.e. as fast as
possible for most vessels).
The slower settings may be used for turns while trawling, trolling, etc., and the mid-range
settings used to prevent dangerous or uncomfortably sharp turns.
Note: The turn rate of a vessel will also depend upon the rudder ratio setting; it is also
dependent on the rudder limits if the limit set is small.
If a course change is entered and it is realised that the rate-of-turn control is set too low
(i.e. the turn is too slow), the rate of turn can be adjusted clockwise to increase the turning
speed. Once a turn has begun, rate of turn can be increased but not decreased.
Rate of turn control only applied in AUTO or GPS modes of steering. A course change
entered from a remote station is not affected by rate of turn.
Weather (Heading Sensitivity)
The main power switch is incorporated in this variable control.
When in the OFF position no power is applied to the AP9. By
turning the knob clockwise from the OFF position, the switch
applies power to the AP9.
This setting is also used for adjusting the autopilot response to
varying sea conditions and varying vessel response capabilities. The
weather value sets the heading sensitivity (sometimes known as
dead band) which determines the accuracy of the vessel steering. A high weather setting
will cause the vessel to steer very accurately but may cause excessive use of the steering.
In good weather, set this control to a relatively high value but at the same time ensure the
drive lights do not flicker continuously. This will give the straightest possible course.
In poorer weather, this setting can be reduced (anticlockwise) to prevent over activation of
the steering control.
Rotating the control fully anti-clockwise will turn off power to the AP9 autopilot.
Counter-Rudder
In some vessels, changing course requires a large amount of rudder
to be applied initially and then a smaller amount of rudder in the
REVERSE (counter) direction to stop the vessel from swinging
beyond its desired course. This is called
counter-rudder
.